Room air purifier



FIG. 1 is a perspective view of a room air purifier showing the new design;

FIG. 2 is a front view thereof;

FIG. 3 is a right view thereof, the left side view thereof being a mirror image of the right side view shown;

FIG. 4 is a back view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The surface shading illustrated in the drawings is provided merely to highlight the contour of design; it is not intended to be illustrative of texture or gloss.

The broken line showing is included for the purpose of illustration and forms no part of the claimed design. 

The ornamental design for a room air purifier, as shown and described. 